I purchased my EBW1150 in May of this year. I have been using the screen brightness fairly bright until recently when wanting to extend battery life in places where charging is a bit of challenge (solar power). The lower left portion of my screen is a shade darker than the rest. I have written to ETI support but thought I would run this by you people if anyone has experienced the same thing.
FYI, my husband has one also and his screen is uniformly lit.

ETI TechSupport suggested just that DaleDe. It does fix the problem but only for a short time, and the dark area slowly appears again. After telling them this, they said they will send a replacement unit - that it should not require multiple adjustments.

ETI TechSupport suggested just that DaleDe. It does fix the problem but only for a short time, and the dark area slowly appears again. After telling them this, they said they will send a replacement unit - that it should not require multiple adjustments.